Transmission mechanism



J. E. OVREN- TRANSMISSION MECHANISM.

APPLICATION FILED FEB. 14, I921.

i,436,817, Patented Nov. 2&1922.

2 SHEETS-SHEET I.

J. E. OVREN.

TRANSMISSION MECHANISM. APPLICATION FILED FEB. 14.. 1921.

1,436,817, r Patented Nov. 28, 1922..

2 SHEETSSHEET 2.

Patented Nov. 28, 120

JOHN E. OVREN, OF STOUGHTON, WISCONSIN, ASSIGNOR OF ONE-HALF JOHNSON, OF STOUGHTON. WISCONSIN.

T0 JoKUM TRANSMISSION MECHANISM.

Application filed February 14, 1921. Serial No. 444,849.

To all whom it may concern:

' Be it known that I, JOHN E. OVREN, a citizen of the United States, and resident of Stou hton, in the county of Dane and State of Wisconsin, have invented certain new and useful Improvements in Transmission Mechanism; and I do hereby declare that the following is a full, clear, and exact description thereof.

This invention relates to improvements in transmission mechanism, particularly those which are used between the driving axle and the wheel of a tractor or other motor vehicle. The principal object of the invention is to provide a transmission mechanism, which will be simple in construction and positive. in operation, and while it is especially adapted for motor vehicles of a heavy type, it is apparent that the same mechanism may be used in any type of vehicle, or in fact, in any kind of machinery wherein it is desired to provide a speed changing mechanism.

The invention will bedescribed with reference to the drawings, in which Figure 1 is a side elevation, parts being broken away.

Figure 2 is a sectional view on 2-2 of Figure 1.

Similar reference characters denote similar parts in each of the views.-

Numeral 10 denotes the drive shaft or the axle of'a motor vehicle. a driving gear 11 is carried, the said ear being provided with a hub 12, whic is keyed to the axle as shown at 13. Extending from the other side of the' gear 11 is the internallythreaded hub 14. A plug 15 is screwed into the hub 14 and on to the threaded end 16 of the axle. This plug is held in place by a lock nut 17, which is held in .position by a pin 18. A sleeve 19 is slidably and rotatably mounted on the hub 12 and is provided at one end with the peripheral clutch teeth 20. A disc 21 is centrally mounted on the sleeve 19 and is formed with the hub 22, havin the clutch teeth 23 which engage with t e teeth 20. The disc is spaced from the gear- 11 by the anti-friction ball-bearin s, 24.

On the other side of t e gear 11 is mounted a disc 25, the same being secured by the screws 26 to disk 21. Threaded into the center of the disc 25 and surroundin' the hub 14 is a bearing member 27, which 1s adjustable against the ball-bearings 28, the

the line On this axleis secured by the bolt 31 and pin 32. The

discs 21 and 25 carry a plurality of pairs of planetary pinions 33 and 34, one plnion of each pair meshing with a drlve gear 11 and the other member meshing with the ring gear 35, the latter being secured by the screws 36 to the wheel or driven member 37, which is revolubly mounted in any suitable manner on the stationary housing 38. This housing is secured in fixed relation to the frame 39 b any suitable means, such as the lug 40. The housing 38 is provided with teeth 41, with which the teeth 20 are adapted to engage when the sleeve 19 is moved to the right. The means for moving the sleeve 19 longitudinally'consists of annular grooves 42 formed in the end of said sleeve, and a se ental rack 43, which is pivoted on the 'rame 39 and operable by 1. In combination, a drive shaft, a drive gear mounted to rotate therewith, a stationary housing surrounding said drive shaft, a wheel journalled on said housing, a driven gear fixed to said wheel, a pluralit of planetary pinions arranged in pairs, eac pair connecting said drive gear with said driven gear, means for supporting said pinions and means for selectively locking said pinion supporting means to said drive gear for direct drive, or for holding it stationary for a lower speed.

2. In a mechanism of the class described, a drive axle, a wheel therefor, a drive gear rotatable with the axle, a stationary housing surrounding said drive shaft, a wheel journalled on said housin a driven gear fixed to said wheel, rotateile idler pinions connected with the driving and driven gears, revoluble means for supporting said plnions and means for selectively holding'the supporting means against revolving, or for locking the supportin means to the driving gear to rotate therewitIi'.

3. In combination, a drive shaft, a drive gear mounted to rotate therewith, a station- 7 said housing selectively.

4. In combination, a drive shaft, a drive gear mounted to rotate therewith, a stationary housing surrounding said drive shaft, a wheel journalled on said housing, a driven gear fixed to said wheel, pinions connecting said drive gear with said driven gear, means for supporting said pinions, clutch teeth on said drive gear, on said pinion supporting means, and on said housing, a sleeve slidably and rotatably mounted on said drive shaft, clutch teeth on said sleeve at all times engaging the teeth on said pinion supporting means, means for shifting said sleeve to bring its teeth also into engagement with teeth on said drive gear or said housing selectively, said last named means including annular grooves on said sleeve, and a. rock arm having teeth engaging said grooves.

In testimony that I claim the foregoing I have hereunto set my hand at Dallas in the county of Dallas and State of Texas.

JOHN. E. OVREN. 

